I've got a good bunch of mixes up (24 to be exact) with a pretty wide range of styles and moods. The most popular ones seem to be the dance mixes, "Livin' it Up and Gettin' Down" and "Do You Wanna Die, Or Do You Wanna Dance?" though there are others I like a bit more.

Have the 8tracks app and have been messing around with it. Navigation is slightly hampered; it's pretty barebones right now, feels like they rushed getting the app to market a little. Also, my Mix Feed starts with the oldest mixes first which is fucking infuriating considering i'd need to scroll through all the mixes in my feed to get to new ones. The player itself is perfectly fine and reliable, which I suppose is the important part, and works over 3G nicely.